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Three taps A, B, and C can fill a tank in 20, 24, and 30 hours, respectively. How long (in hours) would the three taps take to fill the tank if all of them are opened together?
  • a)
    8
  • b)
    12
  • c)
    9
  • d)
    6
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Three taps A, B, and C can fill a tank in 20, 24, and 30 hours, respe...
A can fill 1 unit of water in the tank in 1/20 hours
B can fill 1 unit of water in tank in 1/24 hours
C can fill 1 unit of water in tank in 1/30 hours
(A+B+C) can fill 1 unit of water in tank in 1/20+1/24+1/30 = 6+5+4/120 = 15/120 = 18 days
Therefore,
(A+B+C) can fill full tank in 8 days.
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Three taps A, B, and C can fill a tank in 20, 24, and 30 hours, respectively. How long (in hours) would the three taps take to fill the tank if all of them are opened together?a)8b)12c)9d)6Correct answer is option 'A'. Can you explain this answer?
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